Question: A block attached to a spring undergoes simple harmonic motion on a horizontal frictionless surface. Its total energy is 5 0 J . When the

A block attached to a spring undergoes simple harmonic motion on a horizontal frictionless surface. Its total energy is 50 J . When the displacement is half the amplitude, the kinetic energy is:
0 J
12.5 J
25 J
37.5 J
50J
A block attached to a spring undergoes simple

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